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Rectangular silver ATX power supply unit with fan grille and cable bundle

myVolts

myVolts 420W ATX Power Supply for HP Compaq 5188-0131/29/30

SKU CH-4JHP-1369W

Replaces legacy HP and Compaq ATX units with a 420 W supply offering reduced depth, dual-voltage input, and over-current protection

  • Product typeAT
  • 420 W output powers legacy HP Compaq systems
  • Reduced 5.9" depth fits tight ATX chassis
  • Dual 115 / 230 V input suits global mains
  • Over-current and over-power protection guards components
  • SATA, P4 and floppy connectors cover older drives

Replacement ATX Power Supply for HP Compaq

This 420W ATX power supply replaces several older legacy units used in HP Compaq systems. It matches part numbers 5188-0131, 5188-0129 and 5188-0130 among others. The reduced depth design improves compatibility with compact chassis. It is sold new and ready for installation.

Single 12V Rail Output Rating

The +12V rails deliver 8A each, providing a combined 12V capacity that determines whether this unit can power your components. Over current and over power protection circuits guard against faults. Input voltage accepts 115 / 230 V at 50 / 60 Hz. Operating temperature range spans 0 C to 50 C under full load.

Connector Bundle for Legacy Builds

The cable set includes one ATX 20+4 pin connector, one P4 12V 4-pin connector, three SATA 15-pin connectors, three LP4 4-pin connectors and one floppy 4-pin connector. This mix supports older motherboards, IDE drives and floppy devices. Systems requiring additional SATA or PCIe power cables will need adapters or a different unit.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $92.99
Cheaper than about 70% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

What does the 420 W rating mean for my HP Compaq system?

It indicates the maximum combined power the unit can deliver across all rails, replacing several older HP Bestec and Delta supplies rated from 250 W to 300 W.

How does the ATX connector layout limit what I can connect?

The supply provides one 20+4 pin ATX, one P4 12 V 4-pin, three SATA 15-pin, three LP4 4-pin and one floppy 4-pin connector.

Will the reduced-depth chassis fit my existing mounting points?

The unit measures 5.9" wide by 3.4" high with a shorter depth than the original Bestec, Hipro and Delta units, matching the standard ATX mounting pattern.

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